Receptacle for volatile liquids



Patented July 16, 1940 I UNITED STATES PATENT OFFICE 3 2,207,816 q v RECEPTAGLE FOR VOLATILE LIQUIDS Charles S. Packer, Chicago, 111. Application January 19, 1939, Serial No. 251,750

1 Claim.

This invention relates to improvements in receptacles adaptedv to contain highly volatile liquids, such as benzine, benzole, and the like, and has for its main object to provide a receptacle which is equipped with a manually operable self-closing discharge spout removable bodily from the receptacle body and which is equipped with a self-closing safety valve arranged to cause fluid escaping therethrough to be discharged from said spout.

A further object of the invention is to provide a discharge spout of the type aforesaid wherein the casing for the safety valve is so mounted upon the inner end of the discharge spout as to 5 cause the spring for maintaining the latter normally sealed to be compressed to the degree necessary to perform its function as said casing becomes disposed in its predetermined position on said spout and wherein said last-named spring acts also to maintain normally a fluid-tight connection between said valve casing and the housing of said spout.

A suitable embodiment of the invention is 11- lustrated in the accompanying drawing, Wherein:

2 Fig. 1 is a side elevation of a receptacle construoted in accordance with the invention.

Figs. 2 and 3 are central, longitudinal, sectional views on an enlarged scale, of the discharge spout structure and the mouth portion of the receptacle, and showing the discharge spout per se in closed and open positions, respectively. v

Fig. 4 is a detail plan sectional view taken on 35 the line 44 of Fig. 3.

Receptacles for highly volatile, inflammable liquids are subject to explosion in the event that the receptacle and contents become unduly heated. It is desirable, therefore, that the receptacle shall be equipped with a safety valve which will open automatically at a pressure far below the point at which the receptacle may be fractured.

In order to permit of manufacture of the receptacle, per se, at low cost, it is desirable that 45 the discharge means for maintaining the receptacle normally sealed shall include the safety valve aforesaid and shall constitute a unitary structure adapted to be readily mounted upon and detached from the receptacle for permitting re 50 fill of the latter.

In the instant case the receptacle I is equipped at the center of its top wall with a refill opening which is internally threaded to receive the lower externally threaded end portion 2 of a 5 sleeve member 3 equipped between its ends with with a bore 5 and in its lower end portion with a smaller diameter bore 6, thus providing an annular shoulder I between the ends of said sleeve 5 member 3 upon which a compression spring 8 is supported.

A discharge tube 9, upon which there is rigidly mounted an outer sleeve I0 adjacent its upper end, fits telescopically within the smaller diamo eter bore portion 6 of the sleeve member 3 along its lower end portion and is reciprocable relatively to said sleeve member. The sleeve I0 is equipped between its ends with an annular flange I I which is digitally engageable to force the sleeve 9 inwardly of the receptacle against the action of the spring 8. Below said flange II said sleeve I0 is equipped with an annularly enlarged portion I2 which fits telescopically within the larger bore portion 5 of the sleeve member 3 and is equipped at its lower end with an inwardly projecting annular flange l3 which bears upon the upper end of the sleeve 8.

The lowermost end portion of the tube 9 is externally threaded to receive the internally and 5 externally threaded sleeve or nut I4 to which the casing I 5 for the safety valve I6v is secured. Said casing I5 is equipped in its lower wall with a central opening I! which is bordered by a seat for a gasket I8 upon which the valve I6 is held by means of a light compression spring 20 which is disposed between the lower end of said nut I4 and said valve I6.

The valve I9 is equipped with a series of peripheral projections 2| which cooperate with the inner circumferential wall of the casing I5 to maintain said valve centered within said casing and against lateral movement, the recesses between said projections 2| being adapted to permit the passage of 'fluid into the tube 9 when said valve I9 is unseated from the gasket I8 against the action of the said spring 20.

The said nut I4 cooperates with the lower end portion of the sleeve member 3 to maintain the spring 8 partially compressed at all times. A gasket 22 is disposed between the upper end of the nut I4 and the said lower end of the sleeve member 3 to maintain a fluid-tight joint.

In the portion of the tube 9 which is normally disposed within the smaller bore portion 6 of the sleeve member 3, there are openings 23 through which liquid is discharged when said tube 9, which constitutes the discharge spout of the device, is forced inwardly into the receptacle against actionof the spring 8. 5

The said discharge spout'structure as shown and described is very compact and easily operated and affords a seal for the receptacle to prevent the escape of any fluid from the receptacle except under the influence of pressure sufficient to open the safety valve l9, except when the said tube 9 is moved against action of the compression spring 8.

Obviously, the discharge spout structure may be disposed interchangeably upon receptacles of different sizes, this being very advantageous commercially.

I claim as my invention: 3

A discharge spout structure for a receptacle comprising a sleeve member adapted to be detachably mounted upon and in sealing relation to a receptacle, said sleeve member equipped with a stepped central cylindrical bore of smaller diameter at its lower than at its upper end, a tube fitting telescopically at its lower end portion in" a said smaller diameter bore, the upper end portion of said tube passing telescopically through i and projecting from the larger diameter portion of said bore, a compression spring in the latter engaged with said tube, a shallow cylindrical safety valve casing mounted upon and communieating with the lower end ofsaid tube below the lower end of said sleeve member and maintained normally engaged with the latter by the action of said spring, a spring-held fiat-faced and noncircular safety valve in said casing, a seat for said valve bordering an opening in the lower wall of said casing, said tube equipped with lateral openings in ;the portion thereof normally housed by said smaller diameter bore portion of said sleeve member to maintain said last-named openings normally sealed, and a digitally engageable member'rigid with said tube for actuating the latter against the action of the firstnamed spring to bring said lateral openings be- 

